What is the best all-inclusive resort in Mexico, Caribbean, that also has a casino?

Question

I'm taking a trip this summer and i'm trying to find a place where my mother won't have to spend a bunch of money from surprise expenses plus have a great time with something for everyone. The youngest age in our group is 19 and we'd like to go somewhere with lots to do. My boyfriend enjoys the casino, my brother likes fishing and my mom and me just love to relax andhave a few drinks. Let me know what they best choice is!